Hoist



July 9, 1929. A. D. SABCRSKY 1,720,240

HOIST Filed 15, 1 2 2. Sheets-Sheet 1 Q MQ M1214;

y 1929. A. D. SABORSKY 1.720.240

HOIST Filed Jan. 15, 1927 2 Sheets-Sheet- 2 I la 1e 17 FIGr'5 FIG.* 4

65% 362107 4, 9 fizz/v MMM@ MT Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

ARTHUR 1). sABoRSxY, or LAKEWOOD, 01110, Assionoa, BY MESNE ASSIGNMENTS,

T0 CHISHOLM-MOORE HoIsT CORPORATION, or BUFFALO, NEW YORK, A co BATION OF NEW YORK.

HOIST.

Application filed January 15, 1927.

This invention relates to a trolley hoist having its control at some distance from the hoist proper and is concerned with mechanism supporting the control and enabling it to be turned about a vertical axis and locked in different positions. The invention is very useful for example with hoisting mechanism having an extended operating shaft on which is a hand chain wheel. I Vith such type of trolley hoist, as it travels about a shop, it sometimes happens that the hand chain depends between the load and some device with which it is to cooperate, and is thus in the way. My invention enables the hoist under these circumstances, to be turned about, other end foremost, so that the hand chain is not troublesome.

The invention is hereinafter more fully described in connection with drawings, and the essential novel characteristics are summarized in the claims.

In the drawings, Fig. 1 a side elevation of a trolley hoist embodying this invention; Fig. 2 is a horizontal section through the suspending brackets of the trolley frame, on the plane indicated by the line 22 on Fig. 1; F 3 is a vertical transverse section on the plane indicated by the line 33 on Fig. 1; Fig. 4 is a longitudinal vertical central section, as indicated by the line 44 on Fig. 2.

In Figs. 1, 3 and 4, designates a suitable overhead supporting I-beam, the lower flanges of which carry a depending trolley. The trolley shown will be hereinafter described in detail. Briefly it has four supporting wheels 12 carrying a horizontal trolley frame 21. This frame carries a vertical bolt 22 which swivelly supports a suitable hoist 30. The hoist mechanism has a flexible load member 31 and any suitable raising mechanism driven by rotary shaft 32. The drawing shows the exterior of a Cyclone hoist, as set out in Patent No. 946,253. though any other suitable hoist may be employed. T he driving shaft as shown is connected by a universal joint 35 with an extending operating shaft 36 carrying the hand chain wheel 37, over which extends the hand chain 38, by which the hoist is operated.

Between the f 'ame 30 of the hoist and the trolley frame 21, is a horizontal beam 40 which as shown is a channel beam with a horizontal web. This beam is so mounted against the overface of the trolley frame 21 that it Serial No. 161,311.

may turn about the axis of the supporting bolt 22. As shown, the web 41 of this channel beam is surmounted by a rub plate 42 which rests against the underside of the frame 21. The opening 43 about the bolt 22 through the parts 41 and 42 is considerably larger than the bolt to avoid any possibility of wearing the latter. A suitable angle bracket 45 riveted to the plates 41 and 42 and bolted to the hoist frame, positions this portion of the beam. Near its outer end, this beam carries a depending bearing bracket 47 in which the extended shaft 36 is journalled.

It will be seen that by the means described, the load stresses are carried directly from the hoist to the I-beam through the supporting bolt and trolley without involving the swin ging frame 40. At the same time, this swingframe supports the extended hand chain shaft 36 which may extend from the trolley in either direction according to the position of the swinging frame, as indicated by the broken lines in Fig. 2.

It is desirable to lock the swinging frame to the trolley frame in either of two posit-ions diametrically opposite so that the frame will extend in one direction or the other substantially beneath the I-beam. To this end, I have provided on the trolley frame at each end thereof, a pair of arcuate keepers 50 and 51, each having a central opening 52, and I proide on the upper surface of the swinging frame 40 a sliding latch bolt 54 adapted to occupy such opening.

The latch bolt 54 is shown as slidably mounted in brackets 55 and 56 supported on the swinging frame 40. A compression spring 57, surrounding the bolt between the bracket 55 and the collar 58 on the bolt, presses the bolt toward the swivel axis 22. Mounted in the swinging frame is a bell crank 59 connected with the bolt 54, and depending from this bell crank is an operating member 60, which may be a. cable, chain or rod.

Fig. 4 shows the bolt 54 occupying the opening in the keeper 50 and thus holding the operating shaft 36 extended toward the left of the hoist 30. Now if it be desired to have the shaft extend in the opposite direction, it is simply necessary for the operator to pull down on the member 60, thus withdrawing the bolt 54 from the keeper, and then the pivoted frame and hoist may be swung about q the axis 22 into tue OPPOSI JG position. 'lhis may be readily accomplished by a diagonal pull on the hand chain 38. G

As the frame l0 comes into a new position, the projecting end of the bolt 54 engages the end portion 53 of the keeper, which is benton a less radius than the immediate portion. Accordingly this end port-ion acts asa cam to force the bolt back against the spring 57, and then as the bolt comes opposite the keeper 51 the spring automatically seats it, locking the parts in that position. The two keeper plates have the cam portions 53 adjacent one end and this action is the same for either directionof swinging of the pivoted frame.

hile the trolley frame may be of any suitable construction, the frame shown is composed as follows: the frame member 21 comprises three blocks, Q l, 25 and 26 mounted between the flanges of angle bars 27 secured to a base plate 28 and are held therein by cross bolts designated 29, which pass through the flanges. In the end cross blocks 2st and 26 are mounted vertical. studs 19 on which are swivelled the brackets carrying the trolley wheels. Each of these brackets comprises a block 15 and two side frames 16, bolted thereto by bolts 17 and carrying the axles of the main wheels 12. These wheels are shown as flangeless, the trolley being laterally guided by small wheels 18 on vertical axes mounted in the frame members 16.

It will be understood from the description given and the illustration of the drawings, that I have provided a trolley hoist with a pendant control located at some distance from the hoist proper, and supported in such manner that while the whole structure travels beneath an I-beam, and around the curves thereof as well as the straight portions, it is a very simple matter to reverse the loca tion of the hand chain with reference to the hoist wherever desired. Location of the hand chain some distance from the load is especially convenient, for instance, where the hoist. conveys material to or from a heating device. Now with my reversible hoist, the structure may be switched from track to track and travel at will about the shop without liability of coming to the heating device with the hand chain between it and the load; for, as stated, a simple release of the latch and a pull in the proper direction on the hand chain enables the hand chain and extended shaftto be placed in reversed position.

While I have shown my invention as embodied in a hoist having an extended shaft carrying an operating chain, it is to be understood thatthe invention is useful for various other types of hoist where there is some controlling member at a distance from the hoist proper, as for instance, in a motor driven or operated hoist where it is desirable to have the switch rope or other controlling device oepend at some distance from the load chain. All such embodiments are included with my invention.

I claim:

1. The combination of a trolley, a beam of inverted channel shape along the under side of the trolley frame and projecting beyond the same, a hoist beneath the channel beam, a supporting bolt for the hoist extending freely through the channel beam and mounted in the hoist and trolley frame and swiv eled to one of them, a rigid connection between the channel beam and hoist whereby both the hoist and the beam are swivelled to the trolley frame, said hoist having an extending driving shaft, and a dependent bearing therefor carried by the beam adjacent its outer end.

2. The combination of two pairs of wheels ,dapted to track on the lower flange of an -beam, a bracket for each pair, a horizontal frame member connected to the lower ends cf the respective brackets and adapted to nd beneath the Lbeam and extend in the eetion thereof, a beam along the under sine of said horizontal frame member and projecting beyond the same, a hoist with an extended driving shaft beneath the beam, a supporting bolt for the hoist extending through the beam and mounted in the hoistaud trolley frame and swiveled to one of them, a rigid connection between the beam and hoist, and a bearing for the driving shaft carried by the beam.

" The combination of a trolley frame, a

E). hoist and beam swivelly suspended by the frame, the beam extending beyond the frame, a slidable bolt on the beam, a keeper therefor on the trolley frame, a bell crank on the beam connected with the bolt, and a member dependent from the bell crank whereby the bolt may be operated.

' el. The combination with a suspended trolley having a frame at its lower end, a hoist pivotally suspended from said frame, a lateral beam between the frame and hoist con nected to the hoist, a pair of'keepers on the trolley frame, a locking bolt on the beam adapted to coact with either keeper, the keeper comprising an arcuate plate, the end projections of which are distorted to provide cams forcing the bolt back against a spring into position where it may seat in an opening in the keeper, an extending driving shaft for the hoist beneath the beam, and a bracket depending from the beam and suspending the outer portions of the extended shaft.

5. The combination with an overhead monorail support, of a suspended overhead trolley thereon, a hoist suspended from the trolley and having an extended operating shaft, means for supporting said shaft near its outer end, and means carried by the trolley and shaft support for locking the hoist together with the support for the shaft in a choice of positions, said positions being diallO metrically opposite and each of them being directly beneath the support, whereby the operating shaft of the hoistmay travel di rectly beneath the trolley support but may be swung to either side of the hoist.

6. The combination with a monorail traele way, of a trolley hoist having wheels riding thereon and a suspended frame, a pivot bolt mounted in said frame, a hoist suspended by the pivot bolt and having a flexi ble raising member depending directly from the hoist beneath the trolley frame, a hori- Zontal beam between the hoist and trolley frame, said beam being'secured to the hoist and loosely surrounding the pivot pin and extending for a considerable distance beyond the hoist, a depending bearing carried by the beam near its distant end, a shaft journailed in said bearing and connected with the hoist, and a hand-wheel on the shaft beyond the bearing, the trolley frame extending for a considerable distance in opposite directions from the pivot pin, and the beam being correspondingly extended back of the pivot pin whereby when the operating shaft extends in either direction parallel with the trackway it is supported by the pivot pin and prevented from sagging by reason of the engagement of the trolley frame by the beam on the opposit side of the hoist from the hand-wheel.

7. The combination with an I-beam trackway, of a trolley hoist having four wheels riding on the lower flange of the trackway, a pair of brackets carrying said wheels, a comparatively long and narrow horizontal frame suspended by the brackets, said frame having a substantially flat under surface, a pivot bolt mounted in said frame, a hoist suspended by the pivot bolt and having a iexiblo raising member depending directly from the hoist and substantially in line with the pivot bolt, a horizontal beam between the hoist and frame, said beam being secured to the hoist and loosely surrounding the pivot pin and extending for a considerable distance beyond the hoist, an operating device carried by the extended portion of the beam and connected to the hoist, the trolley frame extending for a considerable distance in opposite directions from the pivot pin, and the beam being correspondingly extended back of the pivot pin whereby when the beam extends in either direction parallel with the trackway it is supported by the pivot pin and prevented from sagging by reasonof the engagement of the elongated trolley frame with the over-hang of the beam on the opposite side of the hoist from the operating device.

8. The combination with a monorail sup port, of a suspending trolley thereon, a swinging beam carried by the trolley on its in'iderside, a hoist carried by the trolley on its underside, both beam and hoist being pivotally suspended on the same axis by the trolley substantially on the load carrying member of the hoist, a driving shaft for the hoist extending along the underside of the beam and havin a bearing suspended from the beam near its end, and means for latching the beam in either of two diametrically opposite positions with the shaft directly beneath the support.

9. The combination of a trolley frame, a hoist suspended thereby, a beam connected with the hoist and extending beyond the trolley frame, a pivot pin swivelling the hoist and beam as a unit to the trolley frame substantially over the load carrying member of the hoist, and locking means, one member of which is carried by the trolley frame and the other by the beam and which is effective only when the beam extends lengthwise of the trolley, a drive shaft on the beam, a hand chain wheel on the drive shaft and a depending hand chain on said wheel.

In testimony whereof, I hereunto aifix my signature.

ARTHUR n. SABORSKY. 

